Greylisting: Postgrey

OPTIONS=" --inet=127.0.0.1:60000 --whitelist-clients=/etc/postfix/postgrey_whitelist_clients --whitelist-recipients=/etc/postfix/postgrey_whitelist_recipients --delay=300"
POSTGREY_TEXT="Greylisting for %r in action, please retry after %s seconds."
Whitelist kavramı

OPTIONS=" --inet=127.0.0.1:60000 --whitelist-clients=/etc/postfix/postgrey_whitelist_clients --whitelist-recipients=/etc/postfix/postgrey_whitelist_recipients --delay=300"